Please note that windows 10 is a service. We keep improving it with update once a decade and an upgrade once in a millennium
. Also kindly note this is developer preview, there still should exist issues (device dependent)
Whilst I understand that this is a 'preview', I too am having an issue or two with one of my favourite features as a professional driver. I've gone from totally hands free, to totally frustrated.
I did post in the cortana forum, but it seems to be full of dust and cobwebs LOL!
My issue is this... Yes, it's a preview build, but in 8.1 cortana was 'beta' and worked flawlessly. The beta tag has now gone and it's as bad a Google's attempt. Voice recognition is haphazzard at best, it takes an age to open a text when 'read it' is requested. Anything from 5-10 seconds is not uncommon. The live tile doesn't update, and isn't live. The halo doesn't do anything after a couple of minutes. I requested tracking of a flight I was due to meet, and not once was I notified of any update. Not even an aeroplane on the tile.
All of my settings are correct, speech etc.. I thought it was just my 1320 but my 930, 640, 640xl are the same.
I haven't found a resolution to this yet. Tried soft reset, hard reset, rolled back to 8.1 and it worked flawlessly. I can work around it but as yet, beta to RC seems to be a backward step